1245046345 has 16 divisors (see below), whose sum is σ = 1574432640. Its totient is φ = 942568704.

The previous prime is 1245046343. The next prime is 1245046351. The reversal of 1245046345 is 5436405421.

It is a cyclic number.

It is not a de Polignac number, because 1245046345 - 2¹ = 1245046343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245046345.

It is not an unprimeable number, because it can be changed into a prime (1245046343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85089 + ... + 98641.

It is an arithmetic number, because the mean of its divisors is an integer number (98402040).

Almost surely, 2^1245046345 is an apocalyptic number.

It is an amenable number.

1245046345 is a deficient number, since it is larger than the sum of its proper divisors (329386295).

1245046345 is a wasteful number, since it uses less digits than its factorization.

1245046345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14544.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 1245046345 is about 35285.2142546988. The cubic root of 1245046345 is about 1075.7924843270.

The spelling of 1245046345 in words is "one billion, two hundred forty-five million, forty-six thousand, three hundred forty-five".